Jasmine、 PromiseでErrorをThrowするメソッドのテスト

export class TestService {
  obj: Something

  async test() {
    await func(); 
    //funcメソットで、下が帰ってくるような場合
    //new Promise((reject) => {reject(new Error('Some Error is occured!')); }
  }
}

describe('TestService', () => {
let testService: TestService();

  beforeEach(() => {
    testService = new TestService(); //サービスの初期化
  });

  it('test') async () =>{ //とりあえず普通にasync
    await expectAsync(testService.test())
    .toBeRejectedWith(new Error('Some Error is occured!'))
  });
});

describe('TestService', () => {
let testService: TestService();

  beforeEach(() => {
    testService = new TestService(); //サービスの初期化
  });

  it('test') () =>{ 
    testService.test().catch((error) => {
      expect('Some Error is occured!').toEqual(error.message);
    })
  });
});